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"whitewave" <> wrote in message
news:...
> I have to process a 120 roll of new Tmax 100 in Rodinal.
> Agfa says 5'30'' at 20°C.
>
> My problem is that since I'm Using distilled water, I have to work at
> 24°. You can't imagine how much Italy is hot now.
>
> Wich times?
>
> What else could I do? I put some distilled water in the fridge, but I
> don't think I wil be able to keep 20°C during all the processing time.
>
> Thanks a lot.
> .....................................
> Marco Baldovin
> www.whitewave.it

Hi Marco,

It is very hot here in this part of Turkey too but I manage to develop my
films at 20 degrees C. I keep the solutions in the fridge until they are
about 19 degrees C. Development times are not very long anyway. A variation
of one or two degrees in temperature is not critically important. If I
really wanted to be anal about it I would put the processing tank in my
paper developing tray filled with iced water and observe the temp. during
processing through the hole in the middle of the tank. Regards,
Alparslan

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[.. snip - our posters are from Italy and Turkey and _you_ think you are
hot? ...]

My friends, may I suggest Rodinal diluted to 1:100 for starters? Development
times will be long enough to compensate for the otherwise critical short
development times, and coincidently good for high-contrast lighting. You
aren't going to win over the weather, so a test roll or two might prove to
be quite helpfull.

>Subject: Kodak Tmax 100 with Rodinal
>From: whitewave
>Date: 7/22/2004 6:25 AM Eastern Daylight Time
>Message-id: <>
>
> I have to process a 120 roll of new Tmax 100 in Rodinal.
> Agfa says 5'30'' at 20°C.
>
> My problem is that since I'm Using distilled water, I have to work at
>24°. You can't imagine how much Italy is hot now.
>
> Wich times?
>
>What else could I do? I put some distilled water in the fridge, but I
>don't think I wil be able to keep 20°C during all the processing time.

I wouldn't worry about developing TMX @ 24C it can take the higher temps a lot
better than the older emulsions. If you are reluctant to work at 24C, go to
page 52 of the "Darkroom Cookbook" and follow the instructions for "Modifying
Developers for Tropical Development".

This chart has been around in a number of different formats (html,
*.pdf etc) for quite a while, but every version of it which I've seen
lacks the data for processing at 23°C - the column is just plain
missing.

I'd be tempted just to interpolate, except that I have my doubts about
the values given for 22° - they seem to be off the curve constituted
by the other values.

> This chart has been around in a number of different formats (html,
> *.pdf etc) for quite a while, but every version of it which I've seen
> lacks the data for processing at 23°C - the column is just plain
> missing.
>
> I'd be tempted just to interpolate, except that I have my doubts about
> the values given for 22° - they seem to be off the curve constituted
> by the other values.
>
> Anyone know if there is a corrected version available somewhere?
>
You concerns are misplaced. All development times need to be done based on
individual testing that takes into account many variables, including your
agitation technique, how you account for pour-in/pour-out time, type of stop
bath (water/acid), you enlarger contrast (condenser/diffusion), etc, etc,
etc.

whitewave wrote:
> I have to process a 120 roll of new Tmax 100 in Rodinal.
> Agfa says 5'30'' at 20°C.
>
> My problem is that since I'm Using distilled water, I have to work at
> 24°. You can't imagine how much Italy is hot now.
>
> Wich times?
>
> What else could I do? I put some distilled water in the fridge, but I
> don't think I wil be able to keep 20°C during all the processing time.

You could stand your chemical bottles (including the jug of distilled
water) in a wash basin filled with cold tap water, and even add ice to
the basin as necessary to regulate temperature. I've heard of many
people doing variations on this to control temperature when even their
tap water is well above 20 C.

--
I may be a scwewy wabbit, but I'm not going to Alcatwaz!
-- E. J. Fudd, 1954

>You concerns are misplaced. All development times need to be done based on
>individual testing that takes into account many variables, including your
>agitation technique, how you account for pour-in/pour-out time, type of stop
>bath (water/acid), you enlarger contrast (condenser/diffusion), etc, etc,
>etc.
>

I've developed TMX in Rodinal 1:50 at 80 degF for 6 minutes with one
inversion each minute. My notes say it was close.

Gene
"Donald Qualls" <> wrote in message
news:7kCMc.155325$%_6.86153@attbi_s01...
whitewave wrote:
> I have to process a 120 roll of new Tmax 100 in Rodinal.
> Agfa says 5'30'' at 20°C.
>
> My problem is that since I'm Using distilled water, I have to work at
> 24°. You can't imagine how much Italy is hot now.
>
> Wich times?
>
> What else could I do? I put some distilled water in the fridge, but I
> don't think I wil be able to keep 20°C during all the processing time.

You could stand your chemical bottles (including the jug of distilled
water) in a wash basin filled with cold tap water, and even add ice to
the basin as necessary to regulate temperature. I've heard of many
people doing variations on this to control temperature when even their
tap water is well above 20 C.

--
I may be a scwewy wabbit, but I'm not going to Alcatwaz!
-- E. J. Fudd, 1954

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